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Fix bug when using -p switch during compression

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When using the -p switch during encoding, the encoder should try
different qlp predictor precision steps. However, some faulty code
was too severely restricting the possible steps. This patch lifts
the restriction to match a restriction coded a little further in
the process. This doesn't make using -p worth your while, but at
least it doesn't create larger files now

Signed-off-by: Erik de Castro Lopo <erikd@mega-nerd.com>
This commit is contained in:
Martijn van Beurden 2014-07-28 13:04:56 +02:00 committed by Erik de Castro Lopo
parent 6a28facd7c
commit 27846708fe
1 changed files with 3 additions and 3 deletions

6
src/libFLAC/stream_encoder.c

@ -3428,9 +3428,9 @@ FLAC__bool process_subframe_(
}
if(encoder->protected_->do_qlp_coeff_prec_search) {
min_qlp_coeff_precision = FLAC__MIN_QLP_COEFF_PRECISION;
/* try to ensure a 32-bit datapath throughout for 16bps(+1bps for side channel) or less */
if(subframe_bps <= 17) {
max_qlp_coeff_precision = flac_min(32 - subframe_bps - lpc_order, FLAC__MAX_QLP_COEFF_PRECISION);
/* try to keep qlp coeff precision such that only 32-bit math is required for decode of <=16bps streams */
if(subframe_bps <= 16) {
max_qlp_coeff_precision = flac_min(32 - subframe_bps - FLAC__bitmath_ilog2(lpc_order), FLAC__MAX_QLP_COEFF_PRECISION);
max_qlp_coeff_precision = flac_max(max_qlp_coeff_precision, min_qlp_coeff_precision);
}
else